ADF4208BRUZ-R7 datasheet(10/24 Pages) AD

10 / 24 page

ADF4206/ADF4208

Rev. A | Page 10 of 24

TEMPERATURE (°C)

100

–40

–100

–70

–80

–90

–60

–20

VDD = 3V

VP = 5V

Figure 17. ADF4208 RF1 Reference Spurs vs. Temperature

(900 MHz, 200 kHz, 20 kHz)

TUNING VOLTAGE (V)

–105

–75

–85

–95

–5

VDD = 3V

VP = 5V

–65

–35

–45

–55

–15

–25

Figure 18. ADF4208 RF1 Reference Spurs vs. VTUNE

(900 MHz, 200 kHz, 20 kHz)

–120

–130

–140

–150

–160

–170

–180

PHASE DETECTOR FREQUENCY (kHz)

VDD = 3V

VP = 5V

ADF4206

ADF4208

100

1000

10000

Figure 19. ADF4208 RF2 Phase Noise vs. PFD Frequency

PRESCALER OUTPUT FREQUENCY (MHz)

200

VDD = 3V

VP = 3V

3.0

2.5

1.5

1.0

2.0

0.5

100

Figure 20. DIDD vs. Prescaler Output Frequency RF1 and RF2 (All Models)

PRESCALER VALUE

ADF4206

ADF4208

Figure 21. ADF4206/ADF4208 AIDD vs. Prescaler Value (RFI)

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